Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc si cau snippets" » "duoc si cau snippets", "duc sy cau snippets", "duc so cau snippets", "duc di cau snippets", "duc si cay snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("duc si cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc si cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc si cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc si cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.